There are no sites that help you prepare for UPSEE in Hindi. What you can do is buy some books online or from a bookstore nearby and practise. We can help you with free downloadable sample papers. You can practise them: https://engineering.careers360.com/download/upsee-ebooks

15 years Solved Papers by Arihant Experts

Sampoorna Success

B.Sc Agriculture Pravesha Pariksha by Arihant Experts

These are few books that can help you prepare for UPSEE in Hindi. Practise also from our sample papers.